Voices In My Head (2005), on how science and religion interpret the phenomenon of people hearing disembodied voices

Dangerous Knowledge (2007), The film looks at three mathematicians (Georg Cantor, Kurt Gödel and Alan Turing) and a physicist (Ludwig Boltzmann), whose genius has profoundly affected the way we understand mathematics and science, but who all died in tragic circumstances. The film begins with Georg Cantor, the mathematician whose work proved to be the foundation for much of 20th-century mathematics. He believed he was God's messenger and struggled greatly to prove his theories of infinity. Ludwig Boltzmann struggled to prove the existence of atoms; his work may have contributed to his eventual suicide. Kurt Gödel, the introverted confidant of Einstein, proved that there would always be problems which were outside human logic. His life ended in a sanatorium where he starved himself to death. Alan Turing, the great Bletchley Park code breaker and father of computer science, committed suicide after being chemically castrated by the British authorities for his homosexuality. The film also talks to the latest in the line of thinkers pursuing the question of whether there are things that mathematics and the human mind cannot know. They include Gregory Chaitin and Roger Penrose.

Heart vs Mind: What Makes Us Human? (2012). The films asks if we are right to see the heart as merely a brilliant pump or whether it should be allowed to reclaim something of its old place at the centre of our humanity.

Metamorphosis: The Science of Change (2013). The film explores the science behind metamorphosis. How does it happen and why? And might it even, in some way, happen to us?

In 2008 Malone began commenting on the financial pages of the Guardian newspaper's website about the credit crunch and the ensuing financial crisis under the pseudonym Golem XIV, the name of a military supercomputer in a novel of the same name by the Polish science fiction writer Stanisław Lem. Malone became a fierce critic of the bank bailouts arguing that they would lead to massive cuts in public spending. In November 2010 his book about the crisis, The Debt Generation, was published in the UK by Level Press.